Bruce Goldfarb v. Mayor and City Council of Baltimore ( 2015 )


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  •                                 PUBLISHED
    UNITED STATES COURT OF APPEALS
    FOR THE FOURTH CIRCUIT
    No. 14-1825
    BRUCE GOLDFARB; MICHAEL GALLAGHER,
    Plaintiffs - Appellants,
    and
    RUTH SHERRILL; ELIZABETH ARNOLD; MERAB RICE; SHERRY MOORE-
    EDMONDS; TIM BULL; JULIA DINKINS,
    Plaintiffs,
    v.
    MAYOR AND CITY COUNCIL OF BALTIMORE; CITY OF BALTIMORE
    DEVELOPMENT CORPORATION; CBAC GAMING, LLC; CBAC BORROWER,
    LLC; MARYLAND CHEMICAL COMPANY, INC.,
    Defendants – Appellees.
    Appeal from the United States District Court for the District of
    Maryland, at Baltimore.    Richard D. Bennett, District Judge.
    (1:13-cv-02768-RDB)
    Argued:   March 25, 2015                     Decided:   July 1, 2015
    Before TRAXLER, Chief Judge, and KING and AGEE, Circuit Judges.
    Vacated and remanded by published opinion. Judge Agee wrote the
    opinion, in which Chief Judge Traxler and Judge King joined.
    ARGUED: Timothy Robert Henderson, RICH & HENDERSON, PC,
    Annapolis, Maryland, for Appellants. Mary Rosewin Sweeney,
    VENABLE LLP, Baltimore, Maryland; Matthew Wade Nayden, BALTIMORE
    CITY SOLICITOR'S OFFICE, Baltimore, Maryland; Donald James
    Walsh, OFFIT KURMAN, PA, Owings Mills, Maryland, for Appellees.
    ON BRIEF: Thomas M. Lingan, Kenneth L. Thompson, VENABLE LLP,
    Baltimore, Maryland, for Appellees CBAC Borrower, LLC, and CBAC
    Gaming, LLC; Amy Beth Leasure, Elizabeth R. Martinez, BALTIMORE
    CITY LAW DEPARTMENT, Baltimore, Maryland, for Appellees Mayor
    and City Council of Baltimore and City of Baltimore Development
    Corporation.
    2
    AGEE, Circuit Judge:
    The    Resource      Conservation        and   Recovery    Act   (“RCRA”),    
    42 U.S.C. § 6901
     et seq., “establishes a cradle-to-grave regulatory
    program for hazardous waste management.”                     Envtl. Tech. Council
    v. Sierra Club, 
    98 F.3d 774
    , 779 (4th Cir. 1996).                             Several
    Maryland     residents      brought     statutory       claims    under     the   RCRA
    against the current and former owners of an industrial property
    in   Baltimore      alleged   to   have     been     contaminated      by   hazardous
    waste.      The district court granted the property owners’ motions
    to dismiss the claims.             For the reasons set forth below, we
    vacate     the   district     court’s     judgment     and    remand    for   further
    proceedings.
    I. 1
    In    2012,    the   City    of   Baltimore 2     (“the    City”)     and   CBAC
    Gaming, LLC (“CBAC Gaming”) entered into an agreement to develop
    a tract of approximately 8.58 acres in Baltimore for use as a
    1Given the posture of this case, we accept as true the
    facts alleged in the complaint, construing them in the light
    most favorable to the plaintiffs-appellants.           See Nemet
    Chevrolet, Ltd. v. Consumeraffairs.com, Inc., 
    591 F.3d 250
    , 255
    (4th Cir. 2009).
    2 The City Council of Baltimore, the Mayor of Baltimore, and
    the City of Baltimore Development Corporation are named party
    defendants.   Though their precise roles varied, the complaint
    essentially alleges the same conduct against each of them. For
    purposes of this appeal, these parties will be collectively
    referred to as “the City.”
    3
    casino and ancillary facilities (“the Casino Site”).                         As a part
    of the arrangement, the City transferred ownership of some of
    the land (the “Warner Street Properties”) to CBAC Borrower, LLC,
    a subsidiary of CBAC Gaming, while it retained ownership of the
    remaining parcels (the “Russell Street Properties”). 3                          Although
    ownership of the Casino Site is divided, CBAC Gaming alone will
    operate the casino and related facilities.
    Prior to the Casino Site development, the property had been
    the location of “various industrial uses” for over a century.
    (J.A.       18.)       In     particular,         Maryland     Chemical     Co.,      Inc.
    (“Maryland          Chemical”)      previously       owned     the    Russell      Street
    Properties,         where    it   conducted       “chemical    manufacturing       and/or
    bulk        chemical       storage,      repackaging     and     distribution”         for
    approximately fifty years.               (J.A. 18.)
    The     City    also       owns   adjacent     property       (the   “Waterfront
    Parcels”) located between the Casino Site and the Middle Branch
    of the Patapsco River.                Given the topography of the area, the
    Casino       Site    and    Waterfront     Parcels     “slope[]      downward    to    the
    southeast” until reaching the shoreline of the river.                               (J.A.
    3
    Defendant CBAC Gaming, LLC “is a consortium of investors
    formed to develop and operate the proposed” casino.    (Appendix
    (“J.A.”) 15.) CBAC Borrower, LLC “is an indirectly wholly-owned
    subsidiary of CBAC Gaming.” (J.A. 15.) Although their precise
    roles vary, these parties will be referred to collectively as
    “CBAC Gaming,” as they can be properly treated as one entity for
    the purposes of our analysis.
    4
    17.)        The Waterfront Parcels are used for various recreational
    activities,       and    include     a    pathway        for    biking,       running,      and
    walking.
    Relying on environmental assessments performed in the 1990s
    and early 2000s, Plaintiffs Bruce Goldfarb, Michael Gallagher,
    and    Tim    Bull    (collectively       “Goldfarb”)          allege        that   hazardous
    waste       contaminates      portions    of       the   Casino       Site    and   has    been
    migrating       to      the    Waterfront          Parcels          and   Middle         Branch.
    Goldfarb, who utilizes the recreational activities available in
    and around the Waterfront Parcels and Middle Branch, filed a
    Complaint in the United States District Court for the District
    of Maryland alleging that the City, CBAC Gaming, and Maryland
    Chemical’s actions (and inactions) on the Casino Site violate
    RCRA.
    The City, CBAC Gaming, and Maryland Chemical each moved to
    dismiss       under     Rule    12(b)     of       the    Federal         Rules     of    Civil
    Procedure.        The district court granted the motions as to all
    claims against all defendants, though its specific reasoning was
    sometimes       imprecise      and   it   varied         as    to    each    defendant       and
    claim.       More will be said about the court’s specific rationales
    below. 4
    4
    Several of the district court’s rulings are not challenged
    on appeal.    It granted a motion to file a surreply brief; it
    concluded that although Goldfarb and his remaining co-appellants
    (Continued)
    5
    Goldfarb   timely    appeals      from    the       district     court’s      order
    dismissing the Complaint.           We have jurisdiction under 
    28 U.S.C. § 1291
    .
    II.
    “RCRA is a comprehensive environmental statute that governs
    the    treatment,   storage,       and   disposal         of   solid    and    hazardous
    waste.”     Meghrig v. KFC W., Inc., 
    516 U.S. 479
    , 483 (1996).                         Its
    “primary purpose . . . is to reduce the generation of hazardous
    waste and to ensure the proper treatment, storage, and disposal
    of that waste which is nonetheless generated, ‘so as to minimize
    the    present    and     future     threat      to       human   health       and    the
    environment.’”      
    Id. at 483
     (quoting 
    42 U.S.C. § 6902
    (b)); see
    also H.R. Rep. No. 94-1491(I), at 4 (1976), reprinted in 1976
    U.S.C.C.A.N. 6238, 6241 (stating that the purpose behind RCRA
    was to “eliminate[] the last remaining loophole in environmental
    law”   by   regulating     the   “disposal       of       discarded     materials     and
    hazardous wastes”).
    Although     the    Administrator             of    the    EPA     has        chief
    responsibility      for   implementing         and    enforcing        RCRA,    “private
    had standing to bring this action, several of the other
    plaintiffs lacked standing and should be dismissed from the
    suit; and it concluded that the plaintiffs had satisfied §
    6972(a)’s notice requirements.      None of these rulings are
    challenged on appeal, and our decision does not affect them.
    6
    citizens [can] enforce its provisions in some circumstances.”
    Meghrig, 
    516 U.S. at
    484 (citing 
    42 U.S.C. § 6972
    ).                           In relevant
    part, § 6972(a) provides that “any person may commence a civil
    action on his own behalf--”
    (1)(A) against any person . . . who is alleged to be
    in   violation    of    any   permit,    standard,
    regulation,        condition,         requirement,
    prohibition,   or    order  which     has   become
    effective pursuant to [RCRA]; or
    (B) against any person . . . who has contributed or
    who is contributing to the past or present
    handling, storage, treatment, transportation,
    or disposal of any solid or hazardous waste
    which may present an imminent and substantial
    endangerment to health or the environment[.]
    “Thus, a suit pursuant to subsection (a)(1)(A) must be based on
    an   ongoing      violation,     whereas       a    suit   under     (a)(1)(B)    may   be
    predicated      on    a     [qualifying]       past    [or    present]        violation.”
    Sanchez v. Esso Standard Oil Co., 
    572 F.3d 1
    , 7 (1st Cir. 2009)
    (emphases added); see discussion infra Section IV.A.                             As their
    plain   language          indicates,    each       subsection       contains    different
    elements and targets somewhat different conduct.
    Subsection           (a)(1)(A)     authorizes          so-called        “permitting
    violation      claims”      to   be    brought      against     a    defendant    who   is
    alleged     “to      be    [currently]     in       violation”       of   a    RCRA-based
    mandate, regardless of any proof that its conduct has endangered
    the environment or human health.                    The permit, etc., subject to
    suit under subsection (a)(1)(A) can be either a state or federal
    7
    standard         that        became       effective          pursuant      to     RCRA.        See     §
    6972(a)(1)(A); Ashoff v. City of Ukiah, 
    130 F.3d 409
    , 411 (9th
    Cir. 1997) (“[I]f state standards ‘become effective pursuant to’
    RCRA,       a    citizen          can    sue     in     federal         court    to     enforce      the
    standard.”).            This is so because RCRA “authorizes the states to
    develop         and     implement         their        own       hazardous      waste     management
    scheme[s] ‘in lieu of the federal program,’” Safety-Kleen, Inc.
    v. Wyche, 
    274 F.3d 846
    , 863 (4th Cir. 2001) (quoting 
    42 U.S.C. § 6926
    ), so long as the state system is at least the “equivalent”
    of the federal program.                       § 6929(b).           Maryland is authorized to
    operate such a parallel regulatory system, and has adopted the
    statutory and regulatory framework to do so.                                       See Notice of
    Final       Determination                on     Maryland’s          Application          for    Final
    Authorization [under RCRA], 
    50 Fed. Reg. 3511
     (Jan. 25, 1985).
    To remedy a subsection (a)(1)(A) violation, the district court
    has    authority            to    enforce       the        “permit,      standard,       regulation,
    condition,         requirement,               prohibition,         or    order”    at    issue.        §
    6972(a).
    At the same time, subsection (a)(1)(B) authorizes so-called
    “imminent         and    substantial            endangerment”           claims     to    be    brought
    against a defendant whose conduct –- whether ongoing or purely
    in    the       past    –-       “may”    now    pose       an    “imminent       and    substantial
    endangerment           to     health      or     the       environment.”          In    contrast      to
    claims          brought          under        subsection          (a)(1)(A),          claims    under
    8
    subsection (a)(1)(B) may be brought regardless of whether the
    plaintiff can demonstrate that the defendant’s actions violated
    a   specific      RCRA-based          permit,       etc.     See     AM   Int’l,       Inc.    v.
    Datacard Corp., 
    106 F.3d 1342
    , 1349-50 (7th Cir. 1997).                                       The
    district     court       has    authority       to    restrain     any     person      who    has
    “contributed        or    who    is     contributing         to   the     past    or   present
    handling, storage, treatment, transportation, or disposal of any
    solid or hazardous waste” referenced in subsection (a)(1)(B).                                   §
    6972(a).
    Lastly, to remedy a violation of either subsection, the
    district court has authority “to order [a defendant] to take
    such other action as may be necessary.”                       § 6972(a).
    We   review       de    novo    both     the   district       court’s      Rule      12(b)
    dismissal        and    its     statutory       interpretation.            Pitt     Cnty.     v.
    Hotels.com,        L.P.,       
    553 F.3d 308
    ,     311    (4th      Cir.     2009)      (Rule
    12(b)(1) dismissal); Eisenberg v. Wachovia Bank, N.A., 
    301 F.3d 220
    ,   222       (4th    Cir.    2002)       (Rule     12(b)(6)      dismissal);         In    re
    Sunterra Corp., 
    361 F.3d 257
    , 263 (4th Cir. 2004) (statutory
    construction).
    III.    Claims Against CBAC Gaming
    The Complaint alleges that although CBAC Gaming agreed to
    engage      in     certain           remedial       activities       as     part       of     the
    construction of the casino and its ancillary facilities, those
    9
    undertakings did not comply with RCRA and so did not adequately
    address    contamination          at   the    Casino        Site.        Furthermore,   the
    Complaint       alleged        that     CBAC’s        Casino        Site        construction
    activities       would     continue      to        contribute       to    and     exacerbate
    existing contamination in the soil and groundwater, as well as
    its migration to the Waterfront Parcels and Middle Branch.                               In
    particular, Goldfarb pled that CBAC Gaming’s development actions
    violated subsection (a)(1)(A) because they entailed generating,
    treating,       storing,       disposing      of,     and     transporting        hazardous
    wastes     without       the     requisite         permits.         In     addition,     the
    Complaint alleged CBAC Gaming’s construction activities violated
    subsection (a)(1)(B) because they contributed to hazardous waste
    contamination        that       presented      an      imminent          and     substantial
    endangerment to human health and the environment.
    CBAC Gaming moved to dismiss the Complaint pursuant to
    Federal Rule of Civil Procedure 12(b)(1) for lack of subject
    matter jurisdiction and Rule 12(b)(6) for failure to state a
    claim.     In relevant part, CBAC Gaming contended that the claims
    against    it    should     be    dismissed         under    RCRA’s      anti-duplication
    provision, 
    42 U.S.C. § 6905
    (a).                     According to CBAC Gaming, its
    National     Pollutant           Discharge         Elimination        System       (“NPDES”)
    permit,     which        permitted       discharge           of     stormwater        during
    construction of the casino, shielded it from RCRA liability.
    10
    The district court granted CBAC Gaming’s motion to dismiss
    based    on   that      general     defense.           The      court’s       analysis       was
    somewhat convoluted, but tracked the following course:                                   Under
    RCRA’s anti-duplication provision, activities regulated by the
    Clean Water Act (“CWA”) cannot also be regulated by RCRA if
    enforcement        of     both      Acts       would         lead      to      inconsistent
    requirements.        See § 6905(a).            The CWA regulates, among other
    things,    the    discharge       of    pollutants          from    point     sources       into
    navigable waters.           To comply with the CWA, Maryland issued a
    general construction stormwater permit (the NPDES permit), and
    CBAC Gaming was required to comply with that permit during the
    course of the casino construction activities.                               Under the terms
    of the NPDES permit, CBAC Gaming must comply with erosion and
    sediment control and stormwater management plans.                              Those plans,
    in    turn,      mandated    that       CBAC       Gaming       comply       with     specific
    remediation       activities      set    forth       in     a   Response       Action       Plan
    (“RAP”) that CBAC Gaming voluntarily performed as part of its
    participation in Maryland’s Voluntary Cleanup Program.                                      As a
    result,    the    remediation       activities         contained         in    the    RAP    had
    effectively been incorporated into the provisions of the NPDES
    permit and were no longer voluntary.                            The NPDES permit thus
    regulated more than just point source stormwater discharge from
    the     Casino     Site,    but        also    covered          CBAC        Gaming’s     other
    construction       activities      at    the       Casino    Site      by    virtue    of    the
    11
    erosion and sediment control and stormwater management plans and
    the RAP.      So long as CBAC Gaming complied with those approved
    activities, the NPDES permit shielded CBAC Gaming from liability
    under the CWA.           Following this path of reasoning, the district
    court concluded that the NPDES permit shielded CBAC Gaming from
    liability     under       RCRA        since     “further     remedial       requirements
    imposed    under     RCRA       would     be    inconsistent       with    the    remedial
    activities    already       deemed       appropriate       for    the     [Casino]      Site”
    under the NPDES permit.               (J.A. 81.)
    In granting the motion to dismiss as to CBAC Gaming, the
    district court did not state whether its ruling was based upon
    Rule     12(b)(1)    or     Rule       12(b)(6).         Recognizing       the    district
    court’s    lack     of    clarity        on    this    point,    the    parties      devote
    considerable        space       on     brief    to     threshold    issues       that     are
    contingent upon which rule the district court in fact utilized.
    For example, only under Rule 12(b)(1) would it matter whether
    RCRA’s     anti-duplication             provision      implicates       subject      matter
    jurisdiction.            What    is     more,    our    inquiry     would    not     be    as
    concerned with what materials the district court relied on to
    reach its conclusion.                E.g., In re KBR, Inc., 
    744 F.3d 326
    , 333-
    34 (4th Cir. 2014) (“When a defendant challenges subject matter
    jurisdiction via a Rule 12(b)(1) motion to dismiss, the district
    court may regard the pleadings as mere evidence on the issue and
    may consider evidence outside the pleadings without converting
    12
    the proceeding to one for summary judgment.                         However, when the
    jurisdictional       facts    are        inextricably      intertwined        with    those
    central to the merits, the district court should resolve the
    relevant    factual     disputes          only    after    appropriate      discovery.”
    (internal alterations, quotation marks, and citations omitted)).
    By contrast, only under Rule 12(b)(6) does it matter whether the
    district     court     violated          Rule     12(d)’s        limitation     on     what
    materials the court can rely on without converting the motion to
    dismiss into one for summary judgment.                        Accord Fed. R. Civ. P.
    12(d)     (specifying       the     process        a     court     must    follow     when
    converting a Rule 12(b)(6) motion to dismiss to a motion for
    summary judgment after a district court has been presented with
    and   not   excluded       “matters       outside       the    pleadings”);        Hall   v.
    Virginia, 
    385 F.3d 421
    , 424 n.3 (4th Cir. 2004) (observing that
    a court does not convert a motion to dismiss to a motion for
    summary     judgment       when     it    takes        judicial    notice     of     public
    records); Zak v. Chelsea Therapeutics Int’l Ltd., 
    780 F.3d 597
    ,
    607 (4th Cir. 2015) (same, for judicial notice of adjudicative
    facts under Federal Rule of Evidence 201).
    In some cases it could be appropriate to remand for the
    district    court    to     clarify       the     basis    for    its     determination.
    Here,   however,      we     must    vacate       the     district      court’s      ruling
    because dismissing the Complaint under either Rule 12(b)(1) or
    13
    Rule 12(b)(6) was incorrect.             A remand for clarification would
    thus be pointless.
    A.   Rule 12(b)(1)
    “To ward off profligate use of the term ‘jurisdiction,’”
    the Supreme Court “adopted a ‘readily administrable bright line’
    for determining whether to classify a statutory limitation as
    jurisdictional.”      Sebelius v. Auburn Reg’l Med. Ctr., 
    133 S. Ct. 817
    , 824 (2013) (quoting Arbaugh v. Y & H Corp. 
    546 U.S. 500
    ,
    516   (2006)).        Absent       Congress    “clearly        stat[ing]    that    a
    threshold     limitation      on    a   statute’s       scope    shall     count   as
    jurisdictional,”       “courts       should     treat     the       restriction    as
    nonjurisdictional in character.”              Arbaugh, 
    546 U.S. at 515, 516
    .
    Assuming     the   district    court    viewed    the    RCRA    anti-duplication
    provision as jurisdictional, and dismissed under Rule 12(b)(1)
    for lack of jurisdiction, it erred. 5
    While the anti-duplication provision may ultimately bar a
    plaintiff from obtaining relief in a RCRA suit, that result does
    not   mean    that   the   statutory     limitation       is    a    jurisdictional
    5The district court’s opinion gives us some basis for
    inferring that it relied on Rule 12(b)(1). Most pointedly, the
    district court addressed the claims against CBAC Gaming in a
    different section than the one containing the heading: “Failure
    to State a Claim Under Rule 12(b)(6) and Iqbal/Twombly,” which
    introduces the court’s analysis as to the other defendants.
    (J.A. 82.)
    14
    barrier to recovery.           See Arbaugh, 
    546 U.S. at 515
    .             Instead,
    when we examine its plain language, § 6905(a) does not suggest a
    jurisdictional character:
    Nothing in this chapter [i.e., RCRA] shall be
    construed to apply to (or to authorize any State,
    interstate, or local authority to regulate) any
    activity or substance which is subject to the [CWA] .
    . . except to the extent that such application (or
    regulation) is not inconsistent with the requirements
    of [the CWA, among other federal statutes].
    § 6905(a).
    The statute simply instructs that RCRA provisions must give
    way when enforcement would be “inconsistent” with any of the
    other delineated acts.          See Coon ex rel. Coon v. Willet Dairy,
    LP, 
    536 F.3d 171
    , 174 (2d Cir. 2008) (relying on the anti-
    duplication      provision      to   prohibit     plaintiff’s     RCRA    claims
    challenging     identical      activities    authorized     by    a   CWA-based
    permit).      Given § 6905(a)’s silence as to jurisdiction and the
    Supreme Court’s guidance, we conclude that the anti-duplication
    provision implicates the viability of an RCRA cause of action
    rather than the court’s jurisdiction to hear the claim.                         See
    Verizon Md., Inc. v. PSC, 
    535 U.S. 635
    , 642-43 (2002) (“‘[T]he
    absence of a valid (as opposed to arguable) cause of action does
    not    implicate   subject-matter      jurisdiction,      i.e.,   the    court’s
    statutory or constitutional power to adjudicate the case.’                       As
    we have said, ‘the district court has jurisdiction if the right
    of    the   petitioners   to    recover   under   their   complaint      will    be
    15
    sustained if the Constitution and laws of the United States are
    given one construction and will be defeated if they are given
    another,’ unless the claim ‘clearly appears to be immaterial and
    made solely for the purpose of obtaining jurisdiction or where
    such a claim is wholly insubstantial and frivolous.’” (quoting
    Steel      Co.    v.     Citizens     for        Better      Env’t,       
    523 U.S. 83
    ,       89
    (1998))).          Viewed         through       this       lens,    the     anti-duplication
    provision is more in the nature of an affirmative defense like
    the     statute        of     limitations             or    the     failure      to     exhaust
    administrative remedies, which are to be timely asserted by a
    defendant who chooses to do so.                        See Hosanna-Tabor Evangelical
    Lutheran Church & Sch. v. EEOC, 
    132 S. Ct. 694
    , 709 n.4 (2012)
    (noting a dispute amongst federal circuit courts as to whether
    the   ministerial           exception      to    employment        discrimination        claims
    was   “a    jurisdictional           bar    or    a    defense      on    the   merits,”      and
    concluding that it “operates as an affirmative defense to an
    otherwise        cognizable        claim,       not    a    jurisdictional       bar     .    .    .
    because the issue presented by the exception is ‘whether the
    allegations       the       plaintiff      makes       entitle      him    to   relief,’      not
    whether     the    court       has    ‘power          to   hear    the     case’”      (internal
    quotation        marks      and    alterations         omitted)).           Accordingly,          it
    would have        been      error    to    dismiss         the    Complaint     against       CBAC
    Gaming for lack of subject matter jurisdiction pursuant to Rule
    16
    12(b)(1) because a defense to liability under RCRA based on §
    6905(a) does not implicate jurisdiction.
    B.   Rule 12(b)(6)
    In    a     Rule    12(b)(6)       context,    the    reviewing      court    must
    determine        whether     the     complaint     alleges     sufficient    facts     “to
    raise a right to relief above the speculative level” and “to
    state a claim to relief that is plausible on its face.”                              Bell
    Atl. Corp. v. Twombly, 
    550 U.S. 544
    , 555, 570 (2007).                                This
    directive ordinarily limits a court’s review to the “well-pled
    facts in the complaint[, which it must view] in the light most
    favorable to the plaintiff.”                  Brockington v. Boykins, 
    637 F.3d 503
    ,   505       (4th     Cir.   2011);     see    also   Clatterbuck     v.    City   of
    Charlottesville, 
    708 F.3d 549
    , 557 (4th Cir. 2013).                            While no
    absolute bar exists, a motion to dismiss under Rule 12(b)(6)
    does not typically resolve the applicability of defenses to a
    well-pled claim.            See Tobey v. Jones, 
    706 F.3d 379
    , 387 (4th
    Cir.   2013)       (stating      a   motion   to     dismiss    under   Rule    12(b)(6)
    “does not resolve contests surrounding facts, the merits of a
    claim, or the applicability of defenses”).
    Under narrow circumstances, a court may rely on extrinsic
    materials to determine a motion to dismiss without converting
    the proceeding into a motion for summary judgment.                          See Fed. R.
    Civ.    P.       12(d)    (discussing       when    conversion     occurs      and   what
    17
    process must be followed to make it proper); see also Zak, 780
    F.3d       at    606-07   (discussing        when       extrinsic      materials        may   be
    considered         without    implicating        Rule     12(d)).         For    example,      a
    court may properly take judicial notice of “matters of public
    record”         and   other       information      that,       under   Federal        Rule    of
    Evidence 201, constitute “adjudicative facts.” 6                          Philips v. Pitt
    Cnty. Mem’l Hosp., 
    572 F.3d 176
    , 180 (4th Cir. 2009); see Fed.
    R. Evid. 201(b) (stating, in relevant part, that a “court may
    judicially         notice     a    fact   that     is    not    subject    to        reasonable
    dispute because it” “can be accurately and readily determined
    from sources whose accuracy cannot reasonably be questioned”);
    Clatterbuck, 708 F.3d at 557 (“[C]ourts may consider relevant
    facts obtained from the public record, so long as these facts
    are construed in the light most favorable to the plaintiff along
    with the well-pleaded allegations of the complaint.” (internal
    quotation marks omitted)).
    The parties raise multiple arguments regarding the district
    court      taking     judicial      notice    of    certain      “facts”        in    order   to
    decide the motion to dismiss, if indeed the district court did
    so.     Goldfarb asserts the district court converted the motion to
    dismiss into a motion for summary judgment in violation of Rule
    12(d).          CBAC Gaming responds that the court did not violate this
    6   “Adjudicative facts are simply the facts of the particular
    case.”      Fed. R. Evid. 201, Advisory Committee’s note.
    18
    provision because it could have properly taken judicial notice
    of    each   of    the   exhibits      it   relied       on   as   the    basis    for   its
    analysis.     In particular, it contends that the NPDES permit, the
    City-approved erosion and sediment control plans and stormwater
    management plans, and the RAP are each public records containing
    adjudicative facts subject to judicial notice under Rule 201 of
    the Federal Rules of Evidence. 7                  CBAC Gaming maintains that once
    the    district     court    in     effect     took      judicial       notice    of   those
    exhibits     and    their    contents,       it    was    free     to    interpret     their
    meaning and draw legal conclusions.                   Goldfarb, in turn, replies
    that the district court never claimed it was taking judicial
    notice and therefore necessarily failed to identify what facts
    it    was    noticing       or    provide      Goldfarb        with      notice    and    an
    opportunity        to    respond.       Furthermore,          Goldfarb     contends      the
    exhibits are not public records and that even if the court could
    properly     take       notice    of   their      existence,       it    erred    by     then
    relying on their contents for the truth of the matters asserted
    therein.
    7
    For example, CBAC Gaming points to language in the NPDES
    permit not only requiring it to “develop and obtain approval . .
    . of . . . erosion and sediment control plans . . . and . . .
    stormwater management plans,” Appellees’ Designated Exhibits
    (“Ex.”) 169 (§ II.A.3), but also stating that “[v]iolations of
    plans for construction activity, including applicable Erosion
    and Sediment Control and Stormwater Management Plans, constitute
    violations of this permit, State law, and the CWA.” (Ex. 176, §
    VI.A.)   It then notes that those plans, in turn, were “subject
    to the provisions in the final RAP.” (Ex. 26, § C 50-06.)
    19
    Goldfarb     is    correct          at    least      to     the       extent    that     the
    district    court       did     not    explicitly          state       that    it     was    taking
    judicial notice of particular “facts,” let alone identify what
    those “facts” were.              Nevertheless, even if we assume that the
    taking of judicial notice was part of the court’s decisional
    process, we need not address whether the act of taking such
    notice     was    erroneous.               There      are        two     reasons       for     this
    conclusion:            First,     regardless          of    how        the    district       court
    proceeded, we, too, are authorized to take judicial notice in an
    appropriate case.             Fed. R. Evid. 201(d) (“The court may take
    judicial notice at any stage of the proceeding.”); Massey v.
    Ojaniit, 
    759 F.3d 343
    , 353 (4th Cir. 2014) (observing that an
    appellate court may take judicial notice of the same materials
    as could a district court).                     Second, even assuming the district
    court could properly take judicial notice of the contents of the
    exhibits, the court’s specific legal analysis was incorrect.
    To grant the motion to dismiss under Rule 12(b)(6), the
    district court would have to conclude that § 6905(a) barred a
    RCRA    cause     of     action       as    pled      against       CBAC       Gaming       because
    enforcement of RCRA would be “inconsistent” with the CWA.                                       The
    district court opined to that effect, stating that any “further
    remedial requirements imposed under RCRA would be inconsistent
    with the remedial activities already deemed appropriate” for the
    20
    Casino Site pursuant to the CWA (via the NPDES permit and the
    documents it incorporated).                (J.A. 81.)
    Since § 6905(a) (or any other RCRA provision of which we
    are aware) does not define “inconsistent,” we give this word its
    ordinary dictionary meaning: “lacking consistency: incompatible,
    incongruous, inharmonious . . . so related that both or all
    cannot be true.”               Webster’s Third Int’l Dictionary 1144; see
    also Black’s Law Dictionary (10th ed.) (“Lacking agreement among
    parts;    not    compatible         with    another     fact    or    claim.”);       Oxford
    English       Dictionary       (“at      variance,    discordant,       in     compatible,
    incongruous”).          To be “inconsistent” for purposes of § 6905(a),
    then, the CWA must require something fundamentally at odds with
    what RCRA would otherwise require.                     See Edison Elec. Inst. v.
    EPA,    
    996 F.2d 326
    ,       337    (D.C.     Cir.    1993)     (rejecting        anti-
    duplication provision argument where petitioners were “unable to
    point    to    any     direct      conflict    between”       RCRA     and    another    act
    listed in § 6905(a)).              RCRA mandates that are just different, or
    even greater, than what the CWA requires are not necessarily the
    equivalent of being “inconsistent” with the CWA.
    Although      the       district     court    recited     the    statutory        term
    “inconsistent,”         it      undertook     no    analysis     in    its     opinion     to
    determine       whether        a   conflict        actually    existed        between     the
    applicable       RCRA      regulations        and     the     CWA,     much    less      what
    constituted      such      a    conflict.          Instead,    the    district     court’s
    21
    analysis overstates when regulation pursuant to RCRA yields to
    the CWA.    It is not enough that the activity or substance is
    already regulated under the CWA; it must also be “incompatible,
    incongruous, inharmonious.”          The district court’s conclusion is
    thus built on the faulty premise that the CWA and RCRA cannot
    regulate the same activity under any circumstance. 8                See New
    Mexico v. Watkins, 
    969 F.2d 1122
    , 1131 (D.C. Cir. 1992) (stating
    § 6905(a) “contemplates joint regulation under both RCRA and
    [another act listed in § 6905(a)] in certain circumstances”).
    The district court never stated what the NPDES permit, erosion
    and sediment control and stormwater management plans, or RAP
    regulated that was “inconsistent” with the alleged obligations
    of CBAC Gaming under RCRA.            Nor did the court examine what
    actions Goldfarb pled CBAC Gaming was required to undertake to
    comply with RCRA that were “inconsistent” with the NPDES permit
    and its derivative documents.
    The   district    court   simply      did   not    undertake   a    basic
    comparison, at least not one discernible from the record, to
    consider   whether    RCRA   would    have   required    anything   of    CBAC
    8  The district court also found it significant that
    Goldfarb’s Complaint did not argue that CBAC Gaming had violated
    any of the erosion and sediment control and stormwater
    management plans or the RAP.    This, too, does not resolve the
    inconsistency inquiry under the anti-duplication statute because
    CBAC Gaming could be in full compliance with those requirements
    and yet still be in violation of RCRA.
    22
    Gaming that would be “inconsistent” with what CBAC Gaming was
    already required to do to comply with the CWA.                              Instead, the
    district court broadly concluded that since all of CBAC Gaming’s
    construction activities would satisfy the CWA as a result of the
    CWA’s    permit    shield,       requiring       anything       “further”    under     RCRA
    would be “inconsistent” with the CWA.                     As set forth above, more
    was    required.         We   therefore     vacate        and    remand    the    district
    court’s decision, if based on Rule 12(b)(6), for the failure to
    identify how the Complaint’s RCRA allegations are “inconsistent”
    with the CWA.       But in so doing, we also note that the procedural
    posture      of   this    case    presents       a   further       ground    of     concern
    relating back to the proper scope of a court’s review of matters
    outside the pleadings and the taking of judicial notice.                               The
    maze    of   cross-references          to   exhibits       and    interpretations       of
    specific     provisions       within    them     makes     this     case    particularly
    ill-suited to adjudication at the motion to dismiss stage.                               As
    noted, CBAC Gaming raised the anti-duplication provision as a
    potential defense to liability, and it relied almost exclusively
    on    exhibits    outside     the   Complaint        in    doing    so.      That     alone
    inclines against deciding the case under Rule 12(b)(6).                                See
    Goodman v. Praxair, Inc., 
    494 F.3d 458
    , 464 (4th Cir. 2007)
    (discussing       “the    relatively        rare     circumstances          where    facts
    sufficient to rule on an affirmative defense are alleged in the
    23
    complaint”      such    that   the   defense     could   be    the    basis      for
    dismissal under Rule 12(b)(6)).
    Furthermore,      the    parties    vehemently     disagree     about      the
    nature and scope of the NPDES permit and other exhibits, putting
    at issue basic factual matters relevant to interpreting what
    those exhibits mean and how they relate to the RCRA claims pled
    against   CBAC    Gaming.       We   have     intentionally    bypassed       these
    arguments and refrained from mining the exhibits to determine
    what, if anything, we could take judicial notice of on appeal.
    See Ohio Valley Envtl. Coal. v. Aracoma Coal Co., 
    556 F.3d 177
    ,
    216 (4th Cir. 2009) (declining to take judicial notice of permit
    decision documents and other exhibits because the party seeking
    notice sought “notice of its own interpretation of the contents
    of those documents” and not just notice of their existence).                     We
    are   mindful    that    judicial    notice     must   not    “be    used   as    an
    expedient for courts to consider ‘matters beyond the pleadings’
    and thereby upset the procedural rights of litigants to present
    evidence on disputed matters.” Waugh Chapel S., LLC v. United
    Food & Commercial Workers Union Local, 
    728 F.3d 354
    , 360 (4th
    Cir. 2013).
    24
    For    all   these      reasons,    we    vacate    the       district   court’s
    judgment granting CBAC Gaming’s motion to dismiss, and remand
    for further proceedings consistent with this opinion. 9
    IV.    Claims Against The City
    The       district      court   dismissed       the    §     6972(a)(1)(A)      and
    (a)(1)(B) claims against the City for failure to state a claim.
    As noted, to survive a Rule 12(b)(6) motion, “a complaint must
    contain sufficient factual matter, accepted as true, to ‘state a
    claim to relief that is plausible on its face.’”                             Ashcroft v.
    Iqbal, 
    556 U.S. 662
    , 678 (2009) (quoting Twombly, 
    550 U.S. at 570
    ).         This standard requires the complaint to do more than
    plead facts that are “‘merely consistent with’ a defendant’s
    liability,” but must “allow[] the court to draw the reasonable
    inference       that   the      defendant    is    liable       for    the    misconduct
    alleged.”       
    Id.
     (quoting Twombly, 
    550 U.S. at 557
    ).                      A complaint
    should “not be dismissed as long as [it] provides sufficient
    detail about [the] claim to show that [the plaintiff] has a
    9 CBAC Gaming urges us to affirm the district court’s
    decision on the alternative basis that it would be appropriate
    to dismiss the claims against it under a Rule 12(b)(6) analysis
    that concluded the Complaint failed to adequately allege each
    component of a § 6972(a)(1)(A) and (B) claims.        Given our
    disposition of the claims against the City and Maryland
    Chemical, and that we have limited our analysis to those matters
    addressed by the district court with respect to each defendant
    and claim, we will similarly limit our review of the claims
    against CBAC Gaming.
    25
    more-than-conceivable chance of success on the merits.”                      Owens
    v. Balt. City State’s Attorneys Office, 
    767 F.3d 379
    , 396 (4th
    Cir. 2014).
    A.   Section 6972(a)(1)(A) Claim
    The Complaint alleges the City’s “acts and/or omissions”
    with respect to the Casino Site failed to comply with RCRA, in
    violation of § 6972(a)(1)(A).            (J.A. 32.)     Concluding that the
    Complaint contained inadequate factual allegations and details
    pertaining to the alleged contamination at the Casino Site and
    its potential migration off site, the district court dismissed
    the Complaint for failure to state a claim under Rule 12(b)(6).
    (J.A. 86.)    In doing so, the court cited three specific pleading
    deficiencies:    that     the    Complaint     (1)   did   not    contain      any
    “factual allegations to explain how the removal of contaminated
    soil    and/or      sources     of     potential     contaminants      actually
    exacerbated or contributed to contamination at the Site”; (2)
    did not provide any “factual details pertaining to the alleged
    storage   and/or     abandonment       of    leaky   drums,   [nor     had     it]
    identified    the     specific       contaminants    associated      with     that
    alleged ‘disposal’”; and (3) did not plausibly allege facts to
    support “that the migration of contaminants at the Site occurred
    during the City’s ownership of the Site.”             (J.A. 86.)
    26
    Goldfarb argues on appeal that the district court erred
    because the Complaint alleges specific facts, which if proven,
    would    support         the    City’s     liability           under     RCRA.           The    City
    responds that since the only acts the Complaint alleges it to
    have undertaken involve the removal of contamination from the
    Casino Site, there is no set of facts under which it could be
    liable         for         generating,          handling,          treating,              storing,
    transporting,            or    disposing       of    hazardous         or   solid        waste    as
    required by RCRA.
    We    agree      with    Goldfarb       that      the    Complaint        sufficiently
    alleges an ongoing § 6972(a)(1)(A) violation so as to survive a
    motion        to    dismiss.         The       shortcomings         the     district           court
    identified either do not exist or did not have to be pled to
    state a claim at this stage of the proceedings.
    To state a claim under subsection (a)(1)(A), Goldfarb had
    to   allege         an     ongoing   “violation           of    any     permit,      standard,
    regulation, condition, requirement, prohibition, or order which
    has become effective pursuant to” RCRA.                            In Paragraphs 91-93,
    the Complaint alleges the City “allowed illegally stored and/or
    abandoned          drums      containing       hazardous        wastes      to    leak,        spill
    and/or       otherwise        release    into       the    Casino       Site”;     “excavated,
    moved, mixed, stockpiled, backfilled and/or graded contaminated
    soils        and    groundwater”;        and    “excavat[ed],           mov[ed];         mix[ed];
    backfill[ed];             and/or     grad[ed]          contaminated              soils     and/or
    27
    groundwater located in and around known hot spots of PCE, TCE
    and heavy metals.”        (J.A. 28.)      Paragraphs 94-99 allege various
    activities CBAC Gaming is alleged to have undertaken as part of
    the casino-related construction, and although CBAC Gaming is the
    primary developer, the City owns some of the property on which
    those activities are occurring.             Paragraph 101 asserts that the
    City has
    caused, contributed to and/or exacerbated and will
    continue to cause, contribute to and/or exacerbate the
    contamination in the soils and groundwater at the
    Casino Site and the Waterfront Parcels and the ongoing
    migration of contamination off-site by, among other
    things, excavating, moving and mixing hot spots of
    contamination and/or exposing contaminants in and
    under the Casino Site and the Waterfront Parcels to
    increased infiltration of rain water.
    (J.A. 29-30.)
    The     Complaint    ties    these      allegations    specifically    to
    subsection    (a)(1)(A)    by    alleging:    that   the   City’s   activities
    make it “the current owner[] and operator[] of an unpermitted
    hazardous    waste,   treatment,     storage    or   disposal   facility”   (¶
    117, J.A. 32); that the City “generated ‘solid waste’ and/or
    ‘hazardous waste’” without complying with applicable standards
    (¶¶ 118, 122, J.A. 33); that the City’s construction activities
    entailed the treatment, storage, and/or disposal of hazardous
    waste at the Casino Site, and that the City lacked the requisite
    permits for owning and operating such a facility (¶¶ 120, 123,
    124, J.A. 33-34); and that the above violations “have never been
    28
    remedied    and     therefore,        are    ongoing”        (¶    125,      J.A.    34).      In
    conjunction with these allegations, the Complaint cites specific
    rules    promulgated       pursuant         to    RCRA,      which      Goldfarb      contends
    apply to the City’s activities.                  (J.A. 32-34.)
    The foregoing paragraphs in the Complaint assert specific,
    identifiable       actions      attributed           to     the    City      that     allegedly
    violated        RCRA-based      mandates,            have       gone     uncorrected,        and
    continue unabated such that the City is still “in violation of”
    those    mandates.        We    have      only       briefly      touched      on   subsection
    (a)(1)(A)’s       requirement        of     an    ongoing         or    current     violation,
    which     arises    from       the    statute’s           “to     be    in     violation     of”
    language.        In Gwaltney of Smithfield v. Chesapeake Bay Found.,
    Inc.,     
    484 U.S. 49
        (1987),          the      Supreme       Court       interpreted
    identical language in the CWA to require that for the alleged
    harm to be cognizable, it must “lie[] in the present or the
    future, not in the past.”                 
    Id. at 59
    .        That is to say, “to be in
    violation” does not cover “[w]holly past actions,” but rather
    requires        allegations          of     a        “continuous          or     intermittent
    violation.”        
    Id. at 57
    .         We find it logical and appropriate to
    apply the same meaning to § 6972(a)(1)(A)’s “to be in violation
    of” requirement.          Indeed, other federal circuit courts have done
    the same.         E.g., Parker v. Scrap Metal Processors, Inc., 
    386 F.3d 993
    ,      1010    n.20       (11th          Cir.       2004)     (interpreting        §
    6972(a)(1)(A)’s          “to   be     in     violation          of”     requirement         under
    29
    Gwaltney to require “a continuous or ongoing violation . . . for
    liability      to    attach”);     Conn.        Coastal     Fishermen’s    Ass’n     v.
    Remington Arms Co., Inc., 
    989 F.2d 1305
    , 1315-16 (2d Cir. 1993)
    (same).
    At the same time, we agree with the Second Circuit’s view
    that the § 6972(a)(1)(A) “to be in violation of” language does
    not necessarily require that a defendant be currently engaged in
    the    activity      causing     the   continuous          or   ongoing   violation.
    Rather, the proper inquiry centers on “whether the defendant’s
    actions -- past or present -- cause an ongoing violation of
    RCRA.”    S. Rd. Assocs. v. IBM Corp., 
    216 F.3d 251
    , 255 (2d Cir.
    2000);    accord     §   6972(a)(1)(A).           In    other   words,    although    a
    defendant’s conduct that is causing a violation may have ceased
    in the past, for § 6972(a)(1)(A) purposes, what is relevant is
    that   the     violation    is   continuous        or     ongoing.    That    inquiry
    “turns    on   the   wording     of    the   [permit,       standard,     regulation,
    condition, requirement, prohibition, or order]” the defendant is
    alleged to “be in violation” of.                  S. Rd. Assocs., 
    216 F.3d at 255
    .
    In the case at bar, some of the City’s alleged actions
    occurred in the past and some are ongoing, but the purported
    violations      of   “any   permit,      standard,         regulation,    condition,
    requirement, prohibition, or order” promulgated under RCRA are
    alleged to be “ongoing.”           (J.A. 32-34.)           The district court will
    30
    need to consider this distinction in the context of the specific
    facts    developed     on   remand    and        the   particular       regulations    at
    issue.      Whether     Goldfarb      can    ultimately         prove    his     numerous
    allegations       --    including         whether      there     are      any     ongoing
    violations -- is premature for resolution at this early stage of
    the litigation.        For present purposes, all the Complaint needed
    to do was “provide[] sufficient detail about [the] claim to show
    that    [the     plaintiff]    has    a     more-than-conceivable           chance     of
    success on the merits.”            Owens, 767 F.3d at 396.              The Complaint,
    particularly       through     the    above-cited            paragraphs,        does   so.
    Consequently, the district court erred in granting the motion to
    dismiss, and we vacate the district court’s judgment as to these
    claims and remand for further proceedings consistent with this
    opinion.
    B.   Section 6972(a)(1)(B) Claim
    Relying on substantially the same alleged conduct recounted
    above,     the     Complaint       also     alleged       the    City      violated      §
    6972(a)(1)(B) by pleading it “contributed to the imminent and
    substantial      endangerment       present       at   the    Casino     Site    and   the
    Waterfront       Parcels”     by   exacerbating         known    contamination         and
    taking no action to curtail its continued migration.                            (J.A. 35-
    36.)     The     district    court   concluded         the    Complaint     “failed    to
    state any plausible factual allegations with respect to disposal
    31
    of hazardous waste (as opposed to removal of contaminated soil
    and    other   remedial      activities)”       and    dismissed      the     subsection
    (a)(1)(B) claim under Rule 12(b)(6).                  (J.A. 90.)
    Goldfarb contends this, too, was error, arguing the court
    improperly focused exclusively on “disposal of hazardous waste”
    when    the    statute       also    permits    claims     based        on    “handling,
    storage, . . . or disposal of any solid or hazardous waste.”
    Cf. § 6972(a)(1)(B).           Goldfarb points to the paragraphs in the
    Complaint      where    violations      for    “handling”       and     “storage”        are
    pled.     In addition, he argues that “disposal” has a broader
    statutory definition than the district court recognized, and the
    Complaint      adequately     alleges    a     claim    based    just    on       that   one
    component      of     the    statute    as     well.       Pointing          to    various
    allegations      in    the   Complaint,       Goldfarb    asserts       it    adequately
    “alleges how [the City is] handling, storing, disposing, etc.,
    the waste . . . by removing leaky drums and underground storage
    tanks containing such waste as well as by mixing, moving, etc.
    contaminated soil, subsoil, and groundwater.”                      (Opening Br. 45-
    46.)     Goldfarb maintains these allegations were sufficient to
    survive a motion to dismiss.
    The Complaint had to plausibly allege that the City “has
    contributed or . . . is contributing to the past or present
    handling, storage, treatment, transportation, or disposal of any
    solid    or    hazardous     waste     which    may    present     an    imminent        and
    32
    substantial       endangerment            to     health       or     the      environment”       to
    survive a Rule 12(b)(6) motion.                       § 6972(a)(1)(B).              The district
    court only addressed two components of this claim: contribution
    and disposal.          It first concluded –- in Goldfarb’s favor –- that
    the   Complaint        alleged      activities         that        other     courts     had    held
    would    constitute         “contribution,”           i.e.,        “‘active’        conduct    that
    may   give      rise   to    liability.”              (J.A.    90.)          Nonetheless,       the
    district court concluded that the Complaint failed to state a
    claim    because       it    did    not       adequately       allege        that     the    City’s
    active     conduct      constituted            “disposal      .     .    .    (as     opposed    to
    removal of contaminated soil and other remedial activities) at
    the Site.”        (J.A. 90.)            We find that, here, the district court
    erred.
    As     Goldfarb       points        out,     that       aspect         of   a   subsection
    (a)(1)(B) claim can be satisfied by alleging “handling, storage,
    treatment, transportation, or disposal,” and the district court
    only noted the absence of “disposal.”                          (Emphasis added.)               This
    was     error     because,         at     a     minimum,       the       Complaint          alleges
    affirmative acts by the City that consist of both “handling” and
    “disposal.”        “Handling” is not defined in the relevant statute
    or regulations, but its ordinary definition is broad, “[t]he
    action or an act of dealing with a . . . thing; treatment;
    management[.]”         Oxford English Dictionary.                       “Disposal,” which is
    defined by regulation, is similarly expansive: “the discharge,
    33
    deposit, injection, dumping, spilling, leaking, or placing of
    any solid waste or hazardous waste into or on any land or water
    so that such solid waste or hazardous waste or any constituent
    thereof may enter the environment or be emitted into the air or
    discharged into any waters, including ground waters.”                        
    40 C.F.R. § 260.10
    ; COMAR 26.13.01.03.
    As discussed in the context of the subsection (a)(1)(A)
    claim    against    the    City,     paragraphs       91-93     and    137    of     the
    Complaint allege that the City engaged in various activities on
    the Casino Site that would involve “handling” or “disposal.”
    These activities include allowing leaks, spills, and releases of
    hazardous or solid waste to occur on the property; excavating
    and mixing contaminated soil and groundwater; “addressing” and
    “remov[ing]” contaminated items from the property in a manner
    that    “exacerbated      the    known    contamination       at     and   under    the
    Casino Site and/or the off-site migration of contamination in
    the    soils,   soil   vapors     and/or    groundwater.”          (J.A.     28,   36.)
    These paragraphs of the Complaint also identify a specific time
    period during which the activities are alleged to have occurred
    and some of the chemical substances involved.
    The City appears to assert the misdirected response that
    since    its    challenged      conduct    occurred    as     part    of   its     well-
    intentioned efforts to remediate contamination, its actions are
    immune from liability under § 6972(a)(1)(B).                   Not so.       Hazardous
    34
    waste can be improperly spread, and contamination exacerbated,
    even during remediation efforts.                   A party can violate subsection
    (a)(1)(B) regardless of the reasons for the actions it takes.
    Of course, whether Goldfarb can ultimately prove the allegations
    and prevail on his claim is not a matter upon which we can or do
    speculate, as that is a task for the district court in the first
    instance.      What        is    relevant     in    reviewing        the   claims   at   the
    motion   to   dismiss       juncture      is    that    the     Complaint     sets    forth
    conduct that could plausibly, if proven, constitute “handling”
    or “disposal.”         As such, the Complaint adequately alleges this
    component of a subsection (a)(1)(B) claim.
    The City argues that despite any such error by the district
    court,   we        could        nonetheless        affirm      the    district      court’s
    dismissal     of    this    claim       based   on     the   Complaint’s      failure    to
    adequately allege the other aspects of a § 6972(a)(1)(B) claim.
    To be sure, we could affirm on different grounds if supported
    fully by the record.               See Brewster of Lynchburg, Inc. v. Dial
    Corp.,   
    33 F.3d 355
    ,       361   n.3     (4th    Cir.    1994).       But    nothing
    requires us to do so, and we decline to engage in such lengthy
    alternative analyses here.                  See Singleton v. Wulff, 
    428 U.S. 106
    , 120 (1976) (“It is the general rule, of course, that a
    federal appellate court does not consider an issue not passed
    upon below.”).         The district court is in a better position to
    consider the parties’ arguments in the first instance, which can
    35
    be presented at length rather than being discussed in appellate
    briefs centered on the issues the district court did decide.
    Because the district court’s analysis was incorrect insofar as
    it went, we vacate its judgment granting the motion to dismiss
    as to the City.          We remand to the district court for further
    proceedings consistent with this opinion.
    V.   Claim Against Maryland Chemical
    The district court also dismissed the only claim against
    Maryland    Chemical      --     brought       under    §    6972(a)(1)(B)         --    for
    failure to state a claim.               The court reasoned that because the
    statute requires that a defendant “contribute” to the solid or
    hazardous    waste       at    issue,     the     complaint         must     allege      the
    defendant        affirmatively         acted     to     create       or      cause       the
    contamination      in    order    to    survive    a    motion      to     dismiss.       It
    concluded that alleging “spilling, releasing, and/or disposing
    of hazardous wastes” did not satisfy this requirement because
    those     incidents       could        occur    “without       any        active        human
    participation” by Maryland Chemical.                  (J.A. 89.)
    Goldfarb contends that the district court erred because the
    Complaint alleges that Maryland Chemical’s past operations on
    the Russell Street Properties led to the current contamination
    at that site, which is migrating to the Waterfront Parcels and
    the     Middle    Branch.         He     posits       that    the     Complaint         thus
    36
    sufficiently pled Maryland Chemical’s “contribution” so as to
    state a claim under § 6972(a)(1)(B).                We agree.
    Although we have not previously opined as to the meaning of
    § 6972(a)(1)(B)’s “contribution” requirement, we are bound to
    interpret undefined statutory terms according to their “ordinary
    meaning.”        Russello v. United States, 
    464 U.S. 16
    , 21 (1983)
    (stating congressional “silence compels us to ‘start with the
    assumption     that    the     legislative       purpose    is   expressed   by     the
    meaning of the words used’” (quoting Richards v. United States,
    
    369 U.S. 1
    , 9 (1962)).                Consistent with that guidance, other
    federal circuit courts have looked to the dictionary definition
    of “contribute” to conclude that term for RCRA purposes means
    that a defendant must “be actively involved in or have some
    degree of control over,” “have a share in any act or effect,” or
    “act as a determining factor.”                   Hinds Invs., L.P. v. Angioli,
    
    654 F.3d 846
    ,    850-51       (9th   Cir.   2011);    Sycamore   Indus.   Parks
    Assocs. v. Ericsson, Inc., 
    546 F.3d 847
    , 854 (7th Cir. 2008);
    Cox v. City of Dallas, 
    256 F.3d 281
    , 294 (5th Cir. 2001); United
    States v. Aceto Agric. Chems. Corp., 
    872 F.2d 1373
    , 1384 (8th
    Cir.    1989).        We   adopt     this   interpretation,       which    therefore
    requires a defendant’s active conduct on -- rather than passive
    connection       to   --     the     property     in   order     to   be   deemed     a
    contributor for § 6972(a)(1)(B) purposes.                      See Sycamore Indus.
    Parks, 
    546 F.3d at 854
    .
    37
    The     Complaint    adequately         alleges     such      conduct       as   to
    Maryland      Chemical.      Paragraphs        49-51     allege      that        Maryland
    Chemical engaged in “chemical manufacturing and/or bulk chemical
    storage, repackaging and distribution purposes” for over five
    decades, and that its “past operations at the Russell Street
    Properties      resulted    in     spills      and      releases      of     hazardous
    substances and/or hazardous wastes including, but not limited
    to”   four    specific    spills   on    portions       of    the   Russell       Street
    Properties.      (J.A. 18-19.)          Paragraph 51 alleges the specific
    lots on the Russell Street Properties where the spills occurred,
    and the types of chemicals involved.              (J.A. 19.)         Paragraph 134,
    in turn, alleges that Maryland Chemical’s “past operations”
    contributed    to    the    imminent    and   substantial
    endangerment to human health and the environment which
    is present at the Casino Site and the Waterfront
    Parcels by unlawfully spilling, releasing, and/or
    disposing   of    hazardous   wastes   and/or   hazardous
    substances in the soils and groundwater at the Casino
    Site   (including,   but   not   limited   to  [hazardous
    chemical compounds]) and by failing to address and/or
    remediate the contamination thereafter.
    (J.A. 35.)      Accordingly, the district court erred in dismissing
    the   claim    against     Maryland     Chemical        for   failure       to    allege
    “contribution” under § 6972(a)(1)(B). 10
    10Since the district court relied, in part, on a case
    discussing “disposal” rather than “contribution,” Nurad, Inc. v.
    William E. Hooper & Sons Co., 
    966 F.2d 837
     (4th Cir. 1992), we
    point out that the terms have different meanings.      Moreover,
    once   the   active  component   of   “contribution”  has   been
    (Continued)
    38
    As the City did with respect to the subsection (a)(1)(B)
    claim against     it,    Maryland    Chemical      argues   that    even    if   the
    district court erred as to this one aspect of the claim, we
    could affirm because the Complaint fails to adequately allege
    the remaining elements of a § 6972(a)(1)(B) claim.                    We decline
    to engage in that analysis for the same reasons we limited our
    review above.     We therefore vacate the district court’s judgment
    as   to   Maryland     Chemical   and    remand     this    claim    for   further
    proceedings consistent with this opinion.
    VI.
    For   the   reasons    stated     above,     we   vacate      the    district
    court’s     judgment    dismissing      all   of    Goldfarb’s      RCRA     claims
    established, the “handling, storage, treatment, transportation,
    or disposal” component of the claim presents a separate
    requirement subject to a different analysis.
    For present purposes, we note that RCRA defines “disposal”
    to mean “the discharge . . . dumping, spilling, leaking, or
    placing of any solid waste or hazardous waste into or on any
    land or water so that such solid waste or hazardous waste may
    enter the environment or be emitted into the air or discharged
    into any waters, including ground waters.” § 6903(3) (emphases
    added).   As we observed in Nurad, some of these definitions
    “appear to be primarily of an active voice,” while others
    “readily admit to a passive component: hazardous waste may leak
    or spill without any active human participation.            [It]
    arbitrarily deprive[s] these words of their passive element [to]
    impos[e] a requirement of active participation as a prerequisite
    to” adequately alleging the “disposal” component of a claim.
    966 F.2d at 845.      Thus, the above-recited language of the
    Complaint also sufficiently alleges the disposal element of a §
    6972(a)(1)(B) claim.
    39
    against CBAC Gaming, the City, and Maryland Chemical and remand
    the case for further proceedings consistent with this opinion.
    VACATED AND REMANDED
    40